1801
Everything about the number 1801 — its names, how to write it in other bases and numeral systems, and what makes it interesting mathematically.
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Names of 1801
| Nominal | 1801 |
| Cardinal | one thousand eight hundred one |
| Ordinal | 1,801st |
| This number as US currency | one thousand eight hundred one dollars |
Properties (and some facts) of 1801
| Is 1801 an odd number? | 1801 is an odd number |
| Is 1801 an even number? | 1801 is not an even number |
| Is 1801 a palindrome? | 1801 is not a palindrome |
| Is 1801 a triangle number? | 1801 is not a triangle number |
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1801 in other bases
| Base 2 (Binary) | 11100001001 |
| Base 3 (Ternary) | 2110201 |
| Base 4 (Quaternary) | 130021 |
| Base 5 (Quinary) | 24201 |
| Base 6 (Senary) | 12201 |
| Base 8 (Octal) | 3411 |
| Base 12 (Duodecimal) | 1061 |
| Base 16 (Hexadecimal) | 709 |
| Base 20 (Vigesimal) | 4A1 |
Primes and factors tests for 1801
| Is 1801 a prime number? | 1801 is a prime number |
| Is 1801 a perfect number? | 1801 is not a perfect number |
| Is 1801 a Mersenne prime? | 1801 is not a Mersenne prime |
| Is 1801 a Fermat prime? | 1801 is not a Fermat prime |
| Is 1801 a Fibonacci prime? | 1801 is not a Fibonacci prime |
| Is 1801 a partition prime? | 1801 is not a partition prime |
| Is 1801 a Pell prime? | 1801 is not a Pell prime |
| Prime Factors | Prime factors of 1801 |
1801 in other numeral systems
| 1801 in Roman numerals | MDCCCI |
| 1801 in Chinese numerals | 壹仟捌佰壹 |
| 1801 in Babylonian numerals |   |
| 1801 in Egyptian numerals | 𓆼𓍩𓏺 |
Roots and squares for 1801
| Is 1801 a square number? | 1801 is not a square number |
| Is 1801 a cube number? | 1801 is not a cube number |
| Square root of 1801 | 42.438190347846 |
| Cube root of 1801 | 12.166656241521 |
Recreational math for 1801
| Number 1801 reversed | 1081 |
| Sum of the digits | 10 |
| Number of digits | 4 |
Arithmetic tables for 1801
Other pages about 1801
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